Two New Solitary Bee Species Discovered in Arunachal Pradesh

Two new solitary bee species, Elaphropoda triangulata and Habropoda adi, were identified in Arunachal Pradesh on 11 July 2026. The discovery was made by researchers from the Ashoka Trust for Research in Ecology and the Environment (ATREE), Bengaluru, during the Siang Expedition, and the findings were published in the European Journal of Taxonomy.

Solitary Bees and Ground-Nesting Pollinators

Solitary bees are bees that do not form large colonies with a queen, workers, and drones. Many solitary bees are ground-nesting insects, and the two newly identified species belong to the Anthophorinae subfamily of ground-nesting bees. Wild bees are part of pollinator diversity in forest, grassland, and agricultural ecosystems. Pollination by bees supports the reproduction of many flowering plants and crop species.

Taxonomy and Species Naming

Elaphropoda triangulata was named for its triangular markings, and Habropoda adi was named in honour of the Adi community of Arunachal Pradesh. The genus Elaphropoda has 13 known species worldwide, while the genus Habropoda has 55 known species worldwide. Each of the two species is currently known from a single male specimen collected in Arunachal Pradesh. In taxonomy, a specimen used for formal description serves as the basis for species identification and classification.

Eastern Himalayas and Biodiversity Documentation

Arunachal Pradesh forms part of the Eastern Himalayas, a region known for high species diversity and endemism. Biodiversity documentation in this region includes surveys of insects, plants, birds, amphibians, and mammals. Rapid infrastructure development, road expansion, and changing land use are among the land-use pressures recorded in the Eastern Himalayas. Such pressures affect habitat continuity in forested and montane landscapes.

Important Facts for Exams

• Elaphropoda triangulata and Habropoda adi are solitary bees, not social honey bees.
• The family-level group for bees is Apidae, and many solitary bees belong to subfamilies such as Anthophorinae.
• The European Journal of Taxonomy is a scientific journal that publishes species descriptions and taxonomic studies.
• Arunachal Pradesh is part of the Indo-Burma biodiversity region and the Eastern Himalayas.

Related Discovery in Tawang

Researchers from the Zoological Survey of India discovered another new solitary bee species, Ceratinatawangensis, in Tawang, Arunachal Pradesh, on 4 February 2026. The finding adds to the documented insect diversity of the state.